As shown in the figure, three particles (each with mass m = 24.0 g) are connected together with rods, each of length d = 22.0 cm. You can ignore the mass of the rods. The rigid structure rotates about a point O with angular velocity 0.810 rad/s. What is the rotational inertia of the structure about point O? I = kg . m What is the magnitude of the angular momentum of the structure about point O? I kg . m S m W m m O